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Code Issues

Windows version of PlatformAtomicPointer

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This commit is contained in:
hvlad 2011-04-29 19:11:43 +00:00
parent c076b1d8c1
commit eecde7801c
1 changed files with 9 additions and 14 deletions
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23
src/common/classes/fb_atomic.h
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@ -106,27 +106,26 @@ protected:
};
template <typename T>
class AtomicPointer
class PlatformAtomicPointer
{
public:
explicit AtomicPointer(T* val = NULL) : pointer(val) {}
~AtomicPointer() {}
explicit PlatformAtomicPointer(void* val = NULL) : pointer(val) {}
~PlatformAtomicPointer() {}
T* value() const { return (T*)pointer; }
void* platformValue() const { return (void*)pointer; }
// returns old value
T* setValue(T* val)
void* platformSetValue(void* val)
{
#ifdef _WIN64
return (T*)_InterlockedExchangePointer((volatile PVOID*)&pointer, val);
return _InterlockedExchangePointer((volatile PVOID*)&pointer, val);
#else
//InterlockedExchangePointer((volatile PVOID*)&pointer, val);
return (T*)_InterlockedExchange((LONG volatile*)&pointer, (LONG)val);
return (void*)_InterlockedExchange((LONG volatile*)&pointer, (LONG)val);
#endif
}
bool compareExchange(T* oldVal, T* newVal)
bool platformCompareExchange(void* oldVal, void* newVal)
{
#ifdef _WIN64
return (_InterlockedCompareExchangePointer((PVOID volatile*)&pointer, newVal, oldVal) == oldVal);
@ -136,12 +135,8 @@ public:
#endif
}
operator T* () const { return value(); }
T* operator ->() const { return value(); }
void operator =(T* val) { setValue(val); }
private:
volatile T* pointer;
volatile void* pointer;
};
} // namespace Firebird